Resource exhaustion in Zhangyd-C Oneblog
CVE-2025-2833
A vulnerability was found in zhangyd-c OneBlog up to 2.3.9. It has been classified as problematic. Affected is an unknown function of the component HTTP Header Handler. The manipulation of the argument X-Forwarded-For leads to inefficient regular expression complexity. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.007 (51.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Zhangyd-C Oneblog — versions 2.3.0, 2.3.1, 2.3.2
- Zhyd Oneblog
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/zhangyd-c/OneBlog/issues/35 (issue-tracking, Exploit, Issue Tracking)
- github.com/zhangyd-c/OneBlog/issues/35 (issue-tracking, Exploit, exploit, Issue Tracking)
Frequently asked questions
- What is CVE-2025-2833?
- CVE-2025-2833 is a medium-severity vulnerability in Zhangyd-C Oneblog, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2025-03-27.
- How severe is CVE-2025-2833?
- Medium severity. CVSS v3 base score is 5.3 out of 10.